\begin{tabular}{l*{2}{c}}
\toprule
            &\multicolumn{1}{c}{\shortstack{Coal. nb. other\\cand., t+1}}&\multicolumn{1}{c}{\shortstack{Coal. any other\\cand., t+1}}\\\cmidrule(lr){2-2}\cmidrule(lr){3-3}
            &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}\\
\midrule
RD\_Estimate &      -0.359&      -0.165\\
            &     (0.058)&     (0.026)\\
\midrule
Robust p-value&       0.000&       0.000\\
Observations&        5706&        5706\\
Polynomial order&           1&           1\\
Bandwidth   &       0.050&       0.050\\
Mean, left of threshold&       1.443&       0.829\\
\bottomrule
\end{tabular}
